Storage-battery plate.



'M; KOENER.

STORAGE BATTERY PLATE.

ABPLIOATION PIL'ED AUG. 28, 1912.

Patented Aug. 26, 1913.

. flick-(2150M hORI! 5 FUEKS INC LHMO A r1 HMO" D C UNITED PATENT OFFICE.

or cnreaco, ILLINOIS.

STORAGE-BATTERY r'LA'rE.

i all whom it may; concern ,Be it known that I, MICHEL KOENER, a

) mtitfen'of the United States; residing at Chiinois, have invented certain new a m ts in StorageBattery P and 1 do here ydecl the fO'llOWiHV-I' t clear, and exact description of the ingyention, such as will enable others skilled in the art 'to which ita'ppertains' to makeand use the same] 'This'invention has for its object toprotion thereof videv novel and etlicientstorage battery plate, and Consists in the features of con- Struction and combinations of parts hereinafterj fully described and particularly claimed. I I v y In-the accompanying drawings illustrating the invention: Figure 1+ is a view in' elevation of one face of a storage battery plate" embodying my invention. Fig. -.2-'-

is 'a-centraI vertical section of the same on,

the line 2-2 of Fig, l-. Fig, 3' is a 'vertical longitudinal section of the same on the line 33 of -Fig. l.-; Fig. 4- is a fragment-aw detail'view inelevationon an mlarged scale ofione cellular section of the plate. Figs.'5' 'and '6 are fragmem tary detail vertical sectional views of the Plait ea I I I My invention relates particularly to storage battery plates of the type in which a "very large number-of smallrells are provided which are adapted to become filled with oxid of lead formed by the action of tiguoussection or area by means of a boriibntal slot?) between the -same. and the end sections are also separated from the end or horizontal members or bars 4 of the plate by horizontal slots 5, all of said slots 3 and 5 being of a length equal to the width of each @iiigo, in the county of Cool: and State of' said sections or areas. T ing the secondary battery the surfaces of the Specification of Letters Patent. Patented Aug. 26,1913. Application filed August 28, 1912. Serial No. 717 470.

of said sectionso areas 1. The latter are I provided in opposite faces with a relatively? large number of small elongated rectangular cells 8 separated from each other by the ver.-' tical and horizontal ribs 7 and 8 respectively. These cells on opposite sides or faces of each-of the sections. or areas l are preferably further separated from each other by a central web or partition 9 disposed midway between the outer faces of In use up'on chargcellular faces of said sections or areas 1 which are made of lead, are changed to leadoxid which fills the said cells and causes the .latter to expand in all directions but most particularly in, the direction of least resistance which wouldbe transversely to the length of said cells. As the cells are oblong the pressure due to expansion .of the surfaces thereof as the metal is changed to leadoxid and fills said cells, will cause s-eparatlng pressure to be exerted on opposed walls of the cells and will exert greatest force upon the opposed walls of largest area, which, in the instance illustrated, are the horizontal and longer walls of said cells which are herein referred to as transverse ribs. The latter are also thinner than the vertical Walls herein referred to as longitudinal ribs and will for this reason also yield more readily than the latterso that the horizontal walls Will bulge and cause the cell area or section to expand verticallv, to a far greater degree than horizontally. But; if the vertical ribs were continuous through each cell area or section the expansion of the latter would be greatly hindered and because of unavoidable variations in dimensions of .cells and thickness of the horizontal ribs, would cause the cell area or section to be come warped and distorted.

I have found: it-most convenient to arrange the cells and cell areas respectively as shown in the accompanying drawings but this may obviously be changed and varied without departing from the inven-' tion which has for its particular obyect to provide means whereby expansion of the plate can take place with such a degree of freedom as will relieve the structure of warping and distorting'strains thereby imposed. In order to effect this it will be obvious that all parts of the cellular faces of the plate must be expansible with a substantially equal degree of freedom in all as the length of The number and relative disposition as Well .tionedto the areas of said sections or areas well-known that thebest results will be obof said sections'l laterally of the plate will each other by very thin partition Walls so employed. Thus the action of electrolysis tions or cell areas as directions. By providing the slotsf-B and '5 i such expansion is rendered rilatively free in one direction and the slots 2 permit such expansion in a transverse direction but in order to further promote such freedom of expansion, I provide in the body of each of said sections or areas 1, one or more horizontal slots 10 and 11 extending from face to face of each of said sections or areas 1.

said slots 10 and 11 will be dependent upon the total area of the sec-' tion or area 1 and; the number of cells therethere'to to take up in the middle portion or body of said plate some of the expansion. The Width of the slots 3 and 5 will also be propor- 1 so as to, allow sufficient room for expansion of the latter'but will not provide almaterial' snrplusage of such space, it being tained by leaving the active plate area as much unbroken as possible. Each of said slots 10 and 11 will extend through theweb 9 and through at least one of the vertical ribs 7, said slots being disposed in staggered relation so that each rib 7 will be cut at at least one point between its ends and pref erably at a plurality of points. Expansion be taken'up in the slots 2 and by a lateral expansion andisj distortion of the outer edge portions of said plate, that is to say, the side edges of the latter -will bulge outwardly as said sections .or-areas 1 expand in the direction of the length of the said cells 6. i

hly very opposite faces of the invention contemplates forming a large number of very small cells in plate separated from that the surfaces exposed tot'he action of the acid content of the battery may cover the greatest possible area in proportion to the volume (and consequent weight) oflead will be very rapid and the cells will quickly fill up with the-lead oxid and, unless free- (10111 of expansion thereof is provided, warping and distortion will follow. This may also result from variation in thickness and strength of the'ribs 7 and web 9 tojcausean unequal distributionof strains onopposite sides of said Web 9 and,*by breaking these elements at intervals the inequality of strains is confined to such small subsec--' to be substantially unnoticeable and harmless, that is to say, thewarping and distortion-is at least localized if not entirely obviated.

I claim as 'my invention:

"1. A storage battery plate having elon- 1 and transverse ribs gated cells in its opposite faces, there be mg slots in said plateqarranged to' divide the same into a plurality of roll areas and adapted to permit the latter to expand,-each of saidccll areas having slots therethrough extending parallel with the longer axes otsaid cells and of greater length than the latter, the said slot-s arranged in staggered relation to each other and subdividing the cell area into smaller 'eell areas, the latter. disposed in staggered relation to each other and adapted to move relatively to each other-as. the cell area expands.

2. A- cell area for storage battery plates bordered-in part by free spaces along its edges and having longitudinal and transverse ribs on its opposite faces "forming .cells therein, there being a plurality of slots in the body of said area of less length than u y dimension of the same and arranged parallel with one set of ribs and transverse] y of the other set thereof and intersecting the latter, said slots disposed in staggered relation to each other, whereby said area is subdivided into a-plurality of smaller rclav tively staggered connected areas adapted to move relatively to each other as expansion due to electrolysis proceeds.

-3. A cell area for storage battery plates having longitudinal and transverse ribs on its opposite faces forming cells therein, there being a plurality of' slots in said area arrangedarallel with one set of ribs and transverse y of the other set thereof and intersecting the same, said slots disposed in staiggered relation to each other.

4; n 'a storage battery plate, an area bordered in part by free spaces, saidarea provided on its opposite faces with 'longitn-- dinal and transverse ribs providing a larg number of small cells, therebeing relatively staggered slots in said area off.l ess lcngta than a dimension thereof and intersect ing some. of said ribs" to render the same discontinuousthrough the dimension, or the area longitudinally of said rib, whereby, said area is rendered free to. expand into the free spaces bordering the ,same,

5. 'In'- a storagel battery plate airarca bordered in part by free spaces, saidarca providedon its opposite faees '2.with longi-w as number of small cells, there beings ots in said area at intervals intersecting souie.i render the same disconfinibtudinal and transverse ribs providi'n a large of said ribs to I ous, whereby saidjai'ea is'rendered frega tu expand into the free spaces-borderingjthe same, said'vslotsdisposed in staggered "relation, to each other.

6', In a storage battery plateau. area hordered vin part byfree' spaces, said area pro vided on its opposite faces with longi tudi nal providing a large number of small cells, there being slots in. said area at'intervals intersecting some of said ribs to render whereby aid area is rendered free its the same discontinuous to exnb pand into the free spaces bordering the same, said slots disposed parallel with and instaggered relation to each other.

7 In a storage battery plate an'area bordered in partby free spaces, said. area prothe free spaces bordering the same, said slots disposed parallel with one set of said ribs and in staggered. relation to each other.

' 8. Astorage battery plate having longitudinal and transverse ribson its opposite faces, said longitudinal ribs being disposed at greater intervals than said transverse ribs and coacting with the latter to divide the plate surfaces into oblong cells, there being longitudinal and transverseslots in said plate disposed parallel With the respective ribs and dividing the plate into a plurality of rectangular cellular sections, there being a plurality of. transverse slots in each of the latter and disposed in staggered relation to each other-and each extending through at least one of said longitudinal ribs, each of said longitudinal ribs of each cellular section of said plate intersected between its ends by at least one of said lots.

9. A storage battery plate having longitudinal and transverse ribs on its opposite faces, said longitudinal ribs being disposed at greater intervals than said transverse ribs and coacting with the latter to divide the plate surfaces into oblong cells, there being longitudinal and transverse slots in said plate disposed parallel with the respective ribs and dividing the plate into a plurality of rectangular cellular sections, there being a plurality of transverse slots in each of the latter and disposed in staggered relation to each other and each extending through at least one of said longitudinal ribs, each of said longitudinal ribs of each cellular section of said plate intersected between its ends by at least one of said slots, the latter equalin' width with said cells and bordered by said transverse ribs.

10. In a storage battery plate, an area bordered in part by free spaces along allof its edges and provided on each of its opposite faces with ribs extending transversely to each other and providing. a relatively large number of small cells on each of said faces, there being a plurality of relatively staggered slots in said area each of less length than a dimension of the latter, each of said slots parallel with one set of said ribs and extending through at least one rib of the other set, each rib of the last-named set intersected by at least one of said slots and rendered discontinuous through the said. area thereby.

11. In a storage battery plate, a plate area comprising a webv havingeach of its edges bordered in part by a free space, said Web provided on its respective faces with relativ'ely transversely disposed ribs whereby each face is dividedinto a large number of small elongated cells adapted to be expanded by the action of electrolysispeach of the ribs of one set bein intersected and rendered discontinuous by a'slot through said web of a width substantially equal to the lesser dimension ofa cell, whereby the portions of the rib on opposite sides of a slot are adapted to move relatively to each other isiubstantially as and for the purpose speci- 12. A storage battery plate comprising a plurality of cellular plate areas, there being a free space bordering in part each edge of each ofsaid areas for permitting expansion of the latter, the cells of-said areas elongated and bordered by sets of relatively tran's versely disposed ribs, tlierebeing slots in each area of the Width substantially of the smaller dimensions of acell and each intersecting and rendering discontinuous through said area at least .one rib of one set, said last-named slots of less Width than the firstnamed and permitting relative movement of parts of each area as the expansion of the area by the action of electrolysis proceeds.

13. A storage battery plate comprising a plurality of cellular plate areas, there being a freespace bordering in part each edge of each of said areas for permitting expansion of the latter, the cells of said areas elongated and bordered by sets of relatively transversely disposed ribs, there being slots in each area of the width substantially of the smaller dimensions of a cell and each inter secting and rendering discontinuous through said area at least one rib of one set, said lastnamed slots permitting ,relative movement of parts of each area as the expansion of the area by the action of electrolysis proceeds. v

In testimony whereof I have signed my name in presence of two subscribing 'witnesses.

MICHEL KOENER.

' Witnesses! RUDOLPH 7M. Lorz, M. M. BOYLE. 

